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| TUPTY063 |
FCC-ee: Energy Calibration |
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- M. Koratzinos, A.P. Blondel
DPNC, Genève, Switzerland
- E. Gianfelice-Wendt
Fermilab, Batavia, Illinois, USA
- F. Zimmermann
CERN, Geneva, Switzerland
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FCC-ee aims to improve on electroweak precision measurements, with goals of 100 keV on the Z mass and width, and a fraction of an MeV on the W mass. Compared to LEP, this implies a much improved knowledge of the centre-of-mass energy when operating at the Z peak and WW threshold. This contribution will describe how it is planned to achieve this, by making systematic use of resonant depolarization. A number of difficulties have been identified, due in particular to the long polarization time and amplified ground motion. However the smaller emittance and energy spread of FCC-ee with respect to LEP should help achieve a much improved performance.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-TUPTY063
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